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Ji H, Yuan L, Jiang Y, Ye M, Liu Z, Xia X, Qin C, Jiang D, Gai Y, Lan X. Visualizing Cytokeratin-14 Levels in Basal-Like Breast Cancer via ImmunoSPECT Imaging. Mol Pharm 2022; 19:3542-3550. [PMID: 35285645 DOI: 10.1021/acs.molpharmaceut.2c00004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Hao Ji
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Lujie Yuan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yaqun Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Min Ye
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Zhen Liu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xiaotian Xia
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
- Department of Nuclear Medicine, The People’s Hospital of Honghu, Honghu 433200, China
| | - Chunxia Qin
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Yongkang Gai
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
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Ye M, Gai Y, Ji H, Jiang Y, Qiao P, Wang W, Zhang Y, Xia X, Lan X. A Novel Radioimmune 99mTc-Labeled Tracer for Imaging Sphingosine 1-Phosphate Receptor 1 in Tumor Xenografts: An In Vitro and In Vivo Study. Front Immunol 2021; 12:660842. [PMID: 34484174 PMCID: PMC8416251 DOI: 10.3389/fimmu.2021.660842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 08/03/2021] [Indexed: 11/13/2022] Open
Abstract
Sphingosine-1-phosphate (S1P) is a phospholipid that regulates pleiotropic biological activities and exerts extracellular functions by binding to five specific G-protein-coupled receptors, S1P receptors (S1PR) 1-5. When activated by S1P, S1PR promote the proliferation and invasion of tumor cells by inducing the formation of new blood vessels. We developed and assessed a new monoclonal antibody imaging probe 99mTc-HYNIC-S1PR1mAb, to explore the feasibility of targeting the S1PR1 in vitro and in vivo. S1PR1mAb was prepared and followed by technetium-99m labeling with succinimidyl 6-hydraziniumnicotinate hydrochloride. Cell uptake and blocking studies were performed to investigate the binding specificity of 99mTc-HYNIC-S1PR1mAb in vitro. 99mTc-HYNIC-S1P1mAb was also tested in vivo in mice xenografted with SK-HEP-1 (high-expression of S1PR1) and MCF-7 (low-expression of S1PR1) using single-photon emission-computed tomography (SPECT). Ex vivo gamma counting of tissues from tumor-bearing mice was used to evaluate 99mTc-HYNIC-S1PR1mAb biodistribution. The biodistribution study results showed significantly higher uptake in SK-HEP-1 tumors than in MCF-7 tumors (P < 0.001). Reduced uptake of 99mTc-HYNIC-S1PR1mAb in SK-HEP-1 was observed in tumor-bearing nude mice pretreated with fingolimod, which binds competitively to the receptors, especially S1PR1. 99mTc-HYNIC-S1PR1mAb can be synthesized and specifically targeted to S1PR1 in vitro and in vivo, allowing S1PR1 expression assessment with SPECT imaging.
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Affiliation(s)
- Min Ye
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yongkang Gai
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Hao Ji
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yaqun Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Pengxin Qiao
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Wenxia Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yongxue Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Xiaotian Xia
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
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Bhusari P, Vatsa R, Singh G, Parmar M, Bal A, Dhawan DK, Mittal BR, Shukla J. Development of Lu-177-trastuzumab for radioimmunotherapy of HER2 expressing breast cancer and its feasibility assessment in breast cancer patients. Int J Cancer 2016; 140:938-947. [PMID: 27813061 DOI: 10.1002/ijc.30500] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/24/2016] [Indexed: 11/08/2022]
Abstract
HER2/neu is over expressed in 20-25% of breast cancers. HER2 breast cancers are aggressive and are associated with poor prognosis. The aim of this study was to develop the clinical grade Lu-177-trastuzumab and its preliminary evaluation for specific tumor targeting in HER2 positive breast cancer patients. Trastuzumab was conjugated to bifunctional chelator, DOTA, and characterized for integrity and the number of molecules conjugated. Radiolabeling of DOTA-conjugated trastuzumab was optimized using Lu-177. Quality control parameters including radiochemical purity, stability, sterility, pyrogenicity and immunoreactivity were assessed. A preliminary pilot study was conducted on breast cancer patients (n = 6 HER2 positive and n = 4 HER2 negative) to evaluate the ability of Lu-177-trastuzumab for HER2 specific tumor targeting. The conjugates were efficiently labeled with Lu-177 with high radiochemical purity (up to 91%) and specific activity (6-13 µCi/µg). Lu-177-trastuzumab was stable up to 12 hr post labeling. The radioimmunoassay demonstrated good antigen binding ability and specificity for HER2 receptor protein. The patient studies showed the localization of Lu-177-trastuzumab at primary as well as metastatic sites (HER2 positive) in the planar and SPECT/CT images. No tracer uptake was observed in HER2 negative patients that indicated the specificity of Lu-177-trastuzumab. The study demonstrated that in-house developed Lu-177-trastuzumab has specific targeting ability for HER2 expressing lesions and may in future become a palliative treatment option in the form of targeted radionuclide therapy for disseminated HER2 positive breast cancer.
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Affiliation(s)
- Priya Bhusari
- Department of Nuclear Medicine & PET, PGIMER, Chandigarh, India.,Centre for Nuclear Medicine, Punjab University, Chandigarh, India
| | - Rakhee Vatsa
- Department of Nuclear Medicine & PET, PGIMER, Chandigarh, India.,Centre for Nuclear Medicine, Punjab University, Chandigarh, India
| | - Gurpreet Singh
- Department of General Surgery, PGIMER, Chandigarh, India
| | - Madan Parmar
- Department of Nuclear Medicine & PET, PGIMER, Chandigarh, India
| | - Amanjit Bal
- Department of Histopathology, PGIMER, Chandigarh, India
| | | | | | - Jaya Shukla
- Department of Nuclear Medicine & PET, PGIMER, Chandigarh, India
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Bhusari P, Vatsa R, Singh G, Dhawan DK, Shukla J, Mittal BR. Development and characterization of DTPA-trastuzumab conjugates for radiolabeling with Tc-99m: A radiopharmaceutical for HER2/neu breast cancer. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gniazdowska E, Koźmiński P, Bańkowski K, Łuniewski W, Królicki L. Synthesis, physicochemical and biological evaluation of technetium-99m labeled lapatinib as a novel potential tumor imaging agent of Her-2 positive breast cancer. Eur J Med Chem 2014; 87:493-9. [PMID: 25440878 DOI: 10.1016/j.ejmech.2014.09.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 09/22/2014] [Accepted: 09/24/2014] [Indexed: 12/19/2022]
Abstract
Tumors that are Her-2-positive tend to grow and spread more quickly than other types of breast cancer. Overexpression of Her-2 can be a predictive biomarker for stratification of patients for therapy with Herceptin (containing humanized IgG1 monoclonal antibody trastuzumab) or Tykerb (containing lapatinib di-p-toluenesulfonate) drug. Usually, Her-2 status is determined by immunohistochemical (IHC) as well as fluorescent or chromogenic in situ hybridisation (FISH or CISH) analysis of biopsy material. The objective of the present work was to standardize the conjugation of anti-cancer drug lapatinib (which recognizes selectively the Her-2 extracellular domain) with technetium-99m complex, of type '4+1', to obtain (99m)Tc(NS3)(CN-lapatinib) conjugate for use as in vivo tracer of the Her-2 expression in breast cancer. The conjugate (99m)Tc(NS3)(CN-lapatinib) was formed with high yield, high radiochemical purity and specific activity within the range 25-30 GBq/μmol. The biological in vitro and in vivo studies of the conjugate showed its high affinity to Her-2 receptor (Kd = 3.5 ± 0.4 nM, Ki = 2.9 ± 0.5 nM, Bmax = 2.4 ± 0.3 nM, approximate number of 2.4 × 10(6) binding sites per cell, IC50 = 41.2 ± 0.4 nM) and also pointed out to the clearance through the hepatic and renal route in comparable degree. Basing on these results one can conclude that (99m)Tc(NS3)(CN-lapatinib) conjugate could be a promising radiopharmaceutical for in vivo diagnosis of the Her-2 status in breast with impact on treatment planning.
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Affiliation(s)
- Ewa Gniazdowska
- Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland.
| | - Przemysław Koźmiński
- Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195 Warsaw, Poland
| | - Krzysztof Bańkowski
- Pharmaceutical Research Institute, 8 Rydygiera Street, 01-793 Warsaw, Poland
| | - Wojciech Łuniewski
- Pharmaceutical Research Institute, 8 Rydygiera Street, 01-793 Warsaw, Poland
| | - Leszek Królicki
- Nuclear Medicine Department, Medical University of Warsaw, 1a Banacha Street, 02-097 Warsaw, Poland
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Laidi F, Bouziane A, Lakhdar A, Khabouze S, Rhrab B, Zaoui F. Salivary expression of soluble HER2 in breast cancer patients with positive and negative HER2 status. Onco Targets Ther 2014; 7:1285-9. [PMID: 25053886 PMCID: PMC4105270 DOI: 10.2147/ott.s64230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Background The aim of this study was to investigate the relationship between salivary concentration of the soluble fragment of the HER2 (human epidermal growth factor receptor) protein and its status in mammary tissues. Methods This case-control study was done in 27 breast cancer patients with no visible metastatic disease treated at the gynecology service, Maternity Souissi Hospital, Rabat, Morocco. Two groups were selected, ie, patients with positive and negative HER2 status in mammary tissue. The salivary HER2 protein concentration was assessed by enzyme-linked immunosorbent assay. The salivary HER2 concentration was compared between the HER2-positive and HER2-negative groups using the Mann-Whitney U test. A P-value <0.05 was considered to be statistically significant. Results No statistically significant difference in salivary HER2 protein expression was found between the case and control groups. There was also no significant difference in clinical characteristics according to positive and negative HER2 status (P>0.05), except for the progesterone hormone receptor which was statistically significant in both the case and control groups (P=0.047). Conclusion According to our data, salivary expression of the HER2 receptor may not be a reliable alternative to tissue assessment.
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Affiliation(s)
- Fatna Laidi
- Oral Biomechanics and Biotechnology Research Unit, Faculty of Dental Medicine, Ibn Sina University Hospital, Rabat, Morocco
| | - Amal Bouziane
- Department of Periodontology, Faculty of Dental Medicine, Biostatistical, Clinical and Epidemiological Research Laboratory, Faculty of Medicine and Pharmacy, Ibn Sina University Hospital, Rabat, Morocco
| | - Amina Lakhdar
- Department of Obstetrics and Gynecology, Ibn Sina University Hospital, Rabat, Morocco
| | - Samira Khabouze
- Department of Obstetrics and Gynecology, Ibn Sina University Hospital, Rabat, Morocco
| | - Brahim Rhrab
- Department of Obstetrics and Gynecology, Ibn Sina University Hospital, Rabat, Morocco
| | - Fatima Zaoui
- Oral Biomechanics and Biotechnology Research Unit, Faculty of Dental Medicine, Ibn Sina University Hospital, Rabat, Morocco
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